A. Fujimori et al., SPECTRAL WEIGHT TRANSFER, MASS RENORMALIZATION AND CHEMICAL-POTENTIALSHIFT IN MOTT-HUBBARD SYSTEMS, Journal of electron spectroscopy and related phenomena, 78, 1996, pp. 31-36
We present the results of systematic photoemission and inverse-photoem
ission studies of strongly correlated metallic systems which have one-
, two- and three-dimensional crystal structures. The spectral weight d
istribution exhibits characteristic evolution as a function of band wi
dth and band filling as well as of mass anisotropy. Mass enhancement i
s deduced from the weight transfer between the coherent and incoherent
parts of the spectral function. Chemical potential shift as a functio
n of band filling exhibits an unusual suppression near Mott transition
.